service manual magnetron will immediately stop operating. 2. door viewing screen allows viewing of...

Service ManualMicrowave OvenModel: KOC-154K8S

S/M No. : OC154K8001

Oct. 2006

Caution: In this Manual, some parts can be changed for improving,their performance without notice in the parts list. So, if youneed the latest parts information, please refer to PPL(PartsPrice List) in Service Information Center

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PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVE ENERGY(a) Do not operate or allow the oven to be operated with the door open.

(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or othermicrowave source, and make repairs as necessary: (1) Interlock operation, (2) Proper door closing, (3)Seal and sealing surfaces (arcing, wear, and other damage), (4) Damage to or loosening of hingesand latches, (5) Evidence of dropping or abuse.

(c) Before turning on power to the microwave oven for any service test or inspection within the microwavegenerating compartments, check the magnetron, wave guide or transmission line, and cavity for properalignment, integrity, and connections.

(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwavegeneration and transmission systems shall be repaired, replaced, or adjusted by procedures describedin this manual before the oven is released to the owner.

A microwave leakage check to verify compliance with the Federal performance standard should beperformed on each oven prior to release to the owner.

TABLE OF CONTENTS1. SAFETY AND PRECAUTIONS....................................................................................................................................22. SPECIFICATIONS ........................................................................................................................................................3

3. EXTERNAL VIEW.........................................................................................................................................................33-1. OUTER DIMENSION..........................................................................................................................................33-2. FEATURE DIAGRAM .........................................................................................................................................4

4. INSTALLATION ............................................................................................................................................................5

5. CONTROL PANEL .......................................................................................................................................................6

6. DISASSEMBLY AND ASSEMBLY ..............................................................................................................................7

7. INTERLOCK MECHANISM AND ADJUSTMENT.....................................................................................................18

8. TROUBLESHOOTING GUIDE...................................................................................................................................19

9. MESUREMENT AND TEST .......................................................................................................................................259-1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT ........................................................................259-2. MICROWAVE RADIATION TEST ....................................................................................................................269-3. COMPONENT TEST PROCEDURE................................................................................................................279-4. COMPONENT ACTION....................................................................................................................................28

10. WIRING DIAGRAM...................................................................................................................................................29

11. EXPLODED VIEW AND PARTS LIST ..................................................................................................................31

11-1. DOOR ASSEMBLY.........................................................................................................................................3111-2. CONTROL PANEL ASSEMBLY.....................................................................................................................3111-3. TOTAL ASSEMBLY........................................................................................................................................31

12. PRINTED CIRCUIT BOARD ....................................................................................................................................3513. P.C.B CIRCUIT DIAGRAM.......................................................................................................................................39

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1. SAFETY AND PRECAUTIONS

1. FOR SAFE OPERATIONDamage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and maycause serious bodily injury to the operator.IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE. (Only a trainedservice personnel should make repairs.)

1) A broken door hinge.2) A broken door viewing screen.3) A broken front panel, oven cavity.4) A loosened door lock.5) A broken door lock.

The door gasket plate and oven cavity surface should be kept clean.No grease, soil or spatter should be allowed to build up on these surfaces or inside the oven.DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN. The microwave oven has concealed switches to make sure the power is turned off when the door is opened. Do not attempt to defeat them.DO NOT ATTEMPT TO SERVICE THIS APPLIANCE UNTIL YOU HAVE READ THIS SERVICE MANUAL.

2. FOR SAFE SERVICE PROCEDURES.1. If the oven is operative prior to servicing, a microwave emission check should be performed prior to servicing the

oven.2. If any certified oven unit is found to servicing, a microwave emission check should be performed prior to servicing the

oven.(a) inform the manufacturer, importer or assembler,(b) repair the unit at no cost to the owner,(c) attempt to ascertain the cause of the excessive leakage,(d) tell the owner of the unit not to use the unit until the oven has been brought into compliance.

3. If the oven operates with the door open, the service person should tell the user not to operate the oven and contactthe manufacturer immediately.

IMPORTANT

The wire in this mains lead coloured in accordance with the following code.Green-and-yellow : EarthBlue : NeutralBrown : Live

As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markingsidentifying the terminals in your plug, proceed as follows.The wire which is coloured green-and-yellow must be connected to the terminal in the plug which is marked with theletter ‘E’ or by earth symbol or green-and-yellow.The wire which is coloured blue must be connected to the terminal which is marked with the letter ‘N’ or colouredblack.The wire which is coloured brown must be connected to the terminal which is marked with the letter ‘L’ or colouredred.

NOTE : This oven is designed for counter-top use only.

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3. EXTERNAL VIEW

2. SPECIFICATIONS

* Specifications are subject to change without notice.

1. OUTER DIMENSION

MODEL KOC-154K8S

POWER SUPPLY 230V~50Hz, SINGLE PHASE WITH EARTHING

MICROWAVE 1550W

POWER GRILL 1550W

CONSUMPTION CONVECTION 2550W

COMBINATION 2950W

MICROWAVE ENERGY OUTPUT 950W(IEC705)

MICROWAVE FREQUENCY 2450MHz

OUTSIDE DIMENSIONS (W X H X D) 582X379.1X518.2mm (22.9x14.9x20.4 in.)

CAVITY DIMENSIONS (W X H X D) 390X285.5X383mm (15.4x11.2x15.1 in.)

NET WEIGHT APPROX. 23.1kg (50.9 lbs.)

TIMER 60 minutes

FUNCTION SELECTIONS MICROWAVE/ GRILL/ CONVECTION/ COMBINATION

POWER SELECTIONS 10 LEVELS

CAVITY VOLUME 1.5 Cu. Ft

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2. FEATURE DIAGRAM

1. DOOR HOOKWhen the door is closed, it will automatically lockshut. If door is opened while oven is operating, themagnetron will immediately stop operating.

2. DOOR VIEWING SCREENAllows viewing of food. The screen is designed sothat light can pass through, but not the microwave.

3. DOOR SEALDoor seal maintains the microwave energy withinthe oven cavity and prevents microwave leakage.

4. CONVECTION OUTLET & FAN

5. TOP HEATERTurns on when convection, grill and combi cookingis selected.

6. UNDER HEATER

7. COUPLERThis fits over the shaft in the center of the ovenscavity floor. This is to remain in the oven for allcooking.

8. ROLLER GUIDEThis must always be used for cooking together withthe turntable tray.

9. METAL TURNTABLE TRAYThis is to be used for convection, combination andgrill cooking. It rotates during cooking.

10. GLASS TURNTABLE TRAYThis is to be used for microwave cooking. It rotatesduring cooking.

11. METAL RACK (High)

12. METAL RACK (Low)

13. OVEN LAMPAutomatically turns on during oven operating.

14. SAFETY INTERLOCK SYSTEM

15. CONTROL PANEL

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1. Steady, flat locationThis microwave oven should be set on a steady, flat surface.This microwave oven is designed for counter top use only.

2. Leave space behind and sideAll air vents should be kept a clearance. If all vents are covered during operation, the oven may overheat and, eventually,cause failure.

3. Away from Radio and TV setsPoor television reception and radio interference may result if the oven is located close to a TV, Radio, antenna or feederand so on.Position the oven as far from them as possible.

4. Away from heating appliances and water tapsKeep the oven away from hot air, steam or splash when choosing a place to position it, or the insulation might beadversely affected and breakdowns occur.

5. Power supply• Check your local power source. This microwave oven requires a current of approximately 13(8) amperes,

230V, 50Hz.• Power supply cord is about 1.2 meters long.• The voltage used must be the same as specified on this oven. Using a higher voltage may result in a fire or other

accident causing oven damage. Using low voltage will cause slow cooking. We are not responsible for damageresulting from use of this oven with a voltage of ampere fuse other than those specified.

• This appliance is supplied with cable of special type, which, if damaged, must be repaired with cable of same type.Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person.

6. Examine the oven after unpacking for any damage such as:A misaligned door, broken door or a dent in cavity.If any of the above are visible, DO NOT INSTALL, and notify dealer immediately.

7. Do not operate the oven if it is colder than room temperature.(This may occur during delivery in cold weather.) Allow the oven to become room temperature before operating.

This appliance must be earthed. In the event of an electrical short circuit, earthing reduces the risk of the electric shock byproviding an escape wire for the electric current. This appliance is equipped with a cord having a earthing wire with aearthing plug. The plug must be plugged into an outlet that is properly installed and earthed.

4. INSTALLATION

EARTHING INSTRUCTIONS

WARNINGImproper use of the earthing plug can result in a risk of electric shock. Consulta qualified electrician or serviceman if the earthing instructions are not completely understood, or if doubt exists asto whether the appliance is properly earthed, and either:If it is necessary to use an extension cord, use only a 3-wire extension cord that has a 3-blade earthing plug, and a3-slot receptacle that will accept the plug on the appliance. The marked rating of the extension cord should be equal to or greater than the electrical rating of the appliance, orDo not use an extension cord.

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5. CONTROL PANEL

DISPLAY WINDOW

1. MICROWAVE - indicator, showingmicrowaving in progress.

2. DEFROST - indicator, showing defrostingin progress.

3. GRILL(upper grill heater) - indicator,showing griling in progress.

4. GRILL(lower grill heater) - indicator,showing griling in progress.

5. CONVECTION - indicator, showing convectioning in progress.

6. CHILD LOCK - indicator.

7. % - percentage microwave power levelindicator.

BUTTONS

8. memory - Use to set favorite cookingmode.

9. language - Press to select the language.

10. clock - Use to set clock.

11. crusty/cake - Press to select crusty/cakemenu.

12. auto cook - Press to select auto cookmenu.

13. auto defrost - Press to select defrostmenu.

14. grill - Use to select grill.

15. convection - Use to select convection.

16. m/w - Use to select microwave.

17. combi - Use to select combi.

18. Menu Knob - Use to select menus.

19. more - Use to add time to cooking.

20. less - Use to reduce cooking time.

21. Power/Temp/Mode - Use to set power,temperature and grill/combi mode.

22. dial knob - Use to set time, weight andquantity.

23. stop/clear - Press once to stop aprogramme, and twice to cancel aprogramme.

24. start/speedy cook - Press to start aprogramme, also for speedy start (eachpress adds 30 seconds to microwavecooking time).

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6. DISASSEMBLY AND ASSEMBLY

- Cautions to be observed when trouble shooting.

Unlike many other appliances, the microwave oven is high-voltage, high-current equipment.It is completely safe during normal operation. However, carelessness in servicing the oven can result in an electricshock or possible danger from a short circuit.You are asked to observe the following precautions carefully.

1. Always remove the power plug from the outlet before servicing.2. Use an insulated screwdriver and ware rubber gloves when servicing the high voltage side.3. Discharge the high voltage capacitor before touching any oven

components or wiring.

(1) Check the earthed.Do not operate on a two-wire extension cord.The microwave oven is designed to be used with earthed. It is imperative, therefore, to makes sure it is earthed properlybefore beginning repair work.

(2) Warning about the electric charge in the high voltage capacitor.For about 30 seconds after the operation stopped and electriccharge remains in the high voltage capacitor. When replacing orchecking parts, short between oven chassis and the negativehigh terminal of the high voltage capacitor, by using a properlyinsulated screwdriver to discharge.

4. When the 15A fuse is blown out due to the operation of the monitorswitch; replace primary interlock switch, secondary interlock switchand interlock monitor switch.

5. After repair or replacement of parts, make sure that the screws areproperly tightened, and all electrical connections are tightened.

6. Do not operate without cabinet.

CAUTION : Service personnel should remove their watches whenever working close to or replacing the magnetron.

WARNING : When servicing the appliance, need a care of touching or replacing high potential parts because ofelectrical shock or exposing microwave. These parts are as follows - HV Transformer, Magnetron,HV Capacitor, HV Diode.

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1. To remove cabinet

1) Remove 5 screws on the cabinet back and side.2) Push the cabinet backward.

2. To remove door assembly

1) Remove two screws which secure the stopper hinge top.2) Remove the door assembly from top plate of cavity.3) Reverse the above for reassembly.

NOTE : After replacing the door assembly, perform a check of correct alignment with the hinge and cavity front plate.

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3. To remove door parts.

NO PARTS CODE PARTS NAME DESCRIPTION Q'TY REMARK

A01 3511617200 DECORATOR DOOR STS TO.5 #4 1

A02 3512210300 FRAME DOOR PC 1

A03 3515204900 STOPPER HINGE *T AS KOC-1B0K0S 1

A04 3511714110 DOOR SEAL AS KOC-154K8S 1

A05 3512302800 GASKET DOOR PBT 1

A06 3513101800 HOOK POM 1

A07 3515101800 SPRING HOOK PW1 1

A08 3517008920 BARRIER-SCREEN *O GLASS T3.2 TEMPERED 1

A09 3512607400 HANDLE AS KOC-154K8S 1

A10 3516006800 SPECIAL BADGE AL KOC-154K8S 1

A11 7122401211 SCREW TAPPING T2S TRS 4X12 2

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(1) Remove the gasket door from door plate.(2) Remove two screws from the handle assembly secured to door frame.(3) Remove the handle door and barrier screen outer from door frame.(4) Remove the door frame from door plate.(5) Remove the stopper hinge top from door plate.(6) Remove the spring and the hook.(7) Reverse the above steps for reassembly.

4. Method to reduce the gap between the door seal and the oven front surface.

(1) To reduce gap located on part ‘A’.• Loosen two screws on stopper hinge top, and then push the door

to contact the door seal to oven front surface.• Tighten two screws.

(2) To reduce gap located on part ‘B’.• Loosen two screws on stopper hinge under, and then push the

door to contact the door seal to oven front surface.• Tighten two screws.

NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2.

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5. To remove control panel parts.

(1) Remove four screws(B14) which secure the control panel.(2) Pull out the main PCB assembly(B13).(3) Remove 11 screws(B12) which secure the control panel.(4) Pull out the sub PCB assembly(B07).(5) Pull out the knob function (B09) and the knob volume(B10) from the sub PCB assembly.(6) Pull out the coupler vpc knob (B08) from the sub PCB assembly.(7) Pull out three buttons from the control panel.(8) Pull out decorator ring(B11) from the control panel.(9) Pull out the decorator c-panel (B01) from the control panel.(10) Reverse the above steps for reassembly.


B01 3511617310 DECORATOR C-PANEL SAN 1

B02 3511617300 DECORATOR C-PANEL STS TO.5 #4 1

B03 3516735400 CONTROL-PANEL ABS 1

B04 3516916000 BUTTON FUNCTI0N-A ABS 1

B05 3516916100 BUTTON FUNCTI0N-B ABS 1

B06 3516916200 BUTTON FUNCTI0N-C ABS 1

B07 PKBPMSF200 PCB BUTTON MANUAL AS KOC-154K8S 1

B08 3517401700 COUPLER VPC KNOB POM 1

B09 3513411400 KNOB FUNCTION ABS 1

B10 3513411500 KNOB VOLUME ABS 1

B11 3511617400 DECORATOR RING ABS 2

B12 7621301011 SCREW TAPPING T2S PAN 3X10 11

B13 PKMPMSF210 PCB MAIN MANUAL AS KOC-154K8S 1

B14 7122401211 SCREW TAPPING T2S TRS 4X12 4

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CAUTION : Never install the magnetron without the metallic gasket plate which is packed with each magnetron toprevent microwave leakage. Whenever repair work is carried out on magnetron, check the microwaveleakage. It shall not exceed 4mW/cm2 for a fully assembled oven with door normally closed.

Magnetron antennaMetallicgasketplate

Cooling fin

Filamentterminal

6. To remove high voltage capacitor.

(1) Remove a screw which secure the grounding ringterminal of the H.V.diode and the capacitor holder.

(2) Remove the H.V. diode from the capacitor holder.(3) Reverse the above steps for reassembly.

High voltage circuit wiring

7. To remove magnetron.

(1) Remove a screw which secure the magnetron.(2) Remove the magnetron.(3) Reverse the above steps for reassembly.

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8. To remove wind guide assembly.

(1) Remove a screw for earthing.(2) Remove the noise filter from the wind guide.(3) Remove a screw which secure the wind guide assembly.(4) Draw forward the wind guide assembly.(5) Pull the fan from the motor shaft.(6) Remove two screws which secure the motor shaded pole.(7) Remove the motor shaded pole.(8) Reverse the above steps for reassembly.

9. To remove H.V.transformer.(1) Remove four screws holding the H.V transformer.

(2) Remove the H.V.transformer.

(3) Reverse the above steps for reassembly.

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10. To remove Guide air assembly parts.

1) Remove two screws (G06) and pull out Guide air assembly.2) Remove a screws (G07) and pull out the lamp.3) Remove two screws (G08) and pull out the two spring terminals.4) Remove two screws (G09).5) Pull out the motor and the bracket damper.6) Reverse the above steps for reassembly.


G01 3512525200 GUIDE AIR PBT 1

G02 3513601600 LAMP BL 240V 25W T25 C7A H187 1

G03 3515102700 SPRING TERMINAL SUS301 T0.5 2

G04 3966310100 MOTOR SYNCRO 220V 2.5W GM-16-24FD12 1

G05 3510609100 BRACKET DAMPER SBHG T0.7 1

G06 7112401011 SCREW TAPPING T1 TRS 4X10 2

G07 7112401011 SCREW TAPPING T1 TRS 4X10 1

G08 7121400611 SCREW TAPPING T2S PAN 4X6 2

G09 7121400611 SCREW TAPPING T2S PAN 4X6 2

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11. To remove Top heater assembly parts.

1) Remove two screws (D01) and pull out Guide air outlet (D02) and insulator heater *t (D03).

2) Pull out the Top heater assembly.

3) Pull out the Harness heater (D08).

4) Remove a screw (D09).

5) Pull out the Braket heater*t(D07) from the Cover heater*t(D04).

6) Pull out the Heater miraclon(D06) from the Cover heater*t(D04).

7) Remove two screws (D10).

8) Remove reflector heater *t (D05).

9) Reverse the above steps for reassembly.

REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK

D01 7112401011 SCREW TAPPING T1 TRS 4X10 2

D02 3512523600 GUIDE AIR OUTLET SBHG T0.5 1

D03 3513304000 INSULATOR HEATER *T SECC TO.5 1

D04 3511407600 COVER HEATER *T STS430 T0.4 1

D05 3512806010 REFLECTOR HEATER *T SUS 1

D06 3512803800 HEATER MIRACLON 115V 550W 270MM 2

D07 3510607700 BRACKET HEATER *T SA1D-80 T0.5 1

D08 3512767000 HARNESS HEATER KOC-1B0K0S 1

D09 7S432X4081 SPECIAL SCREW TT3 TRS 4X8 SE MFZN 1

D10 7122408114 SCREW TAPPING T2S TRS 4X6 MFNI 2

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12. To remove Rear heater assembly parts.

REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARKF01 3511413500 COVER *B SBHG-3 TO.4 1

F02 3511410500 COVER MOTOR *B SA1D-80 T0.5 1

F03 7112401011 SCREW TAPPING T1 TRS 4X10 2

F04 7112401011 SCREW TAPPING T1 TRS 4X10 1

C01 3513002300 HOLDER HEATER SUS304 T0.5 3

C02 3512801800 HEATER 230V 1400W 1R18344 1

C03 3511800700 FAN CONVECTION SA1D-80 T0.5 1

C04 3512806000 HEATER REFLECTOR SA1D T0.5 1

C05 3511409800 COVER HEATER *B SA1D-80 T0.5 1

C06 3513303400 INSULATOR HEATER *B SBHG-1 T0.5 1

C07 3963514330 MOTOR SHADED POLE 230V 50HZ MW10CA-T03 1

C08 7400104011 WASHER PLAIN PW-1-4 MFZN 1

C09 3511800900 FAN PBT 1

C10 7402704600 RING C CR-5 SK5 1

C11 3512781310 HARNESS CONVECTION AS KOC-154K8S 1

C12 7113400814 SCREW TAPPING T1 BIN 4X8 MFNI 1

C13 7001401065 SCREW MACHINE PAN 4X10 BSNI 2

C14 7S627W40X1 SPECIAL SCREW NUT FLANGE M4 1



C17 7601400811 SCREW MACHINE PAN 4X8 PW 2

1) Remove two screws (F03) and pull out Cover motor *B (F02).2) Remove a screw (F04) and pull out Cover *B (F01).3) Remove three screws (C12) (C13) and pull out the harness convection (C11).4) Remove four screws (C16) and then pull out the Rear heater assembly.5) Remove the C-Ring (C10) and then pull out the Fan (C09) from Motor shaft.6) Remove a Nut (C14) and the pull out the Fan convection (C03) and Washer plain (C08).7) Remove three screws (F15) and pull out the holder heater (C01) and the heater (C02).9) Remo two screws (C17) and then separate the lnsulator heater *B (C06) and Motor shaded pole (C07).10)Reverse the above steps for reassembly.

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1) Cut the Motor syncro. Cover parts from the base plate.2) Remove a screw and then pull out Motor syncro.3) Remove a screw (E05) and then pull out the Under heater *U. assembly.4) Remove a screw (E04).5) Pull out the Heater *U (E01) from the Cover heater *U (E02).6) Reverse the above steps for reassembly.

13. To remove Motor synchro. And Under heater assembly parts.

CUTTING (6EA)

E04

E02

E05

E01

E03

REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK

E01 3512802000 HEATER *U 230V 400W R18374001 1

E02 3511407500 COVER HEATER *U STS430 T0.5 1

E03 3515304000 SUPPORTER HEATER *U STS430 T0.5 1

E04 7113400814 SCREW TAPPING T1 BIN 4X8 MFNI 1

E05 7113400814 SCREW TAPPING T1 BIN 4X8 MFNI 1

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7. INTERLOCK MECHANISM AND ADJUSTMENT

The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation whenthe door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave.

(1) Primary interlock switchWhen the door is closed, the hook locks the oven door. If the door is not closed properly, the oven will not operate. When the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of themicroswitch.Then the button of the primary interlock switch bring it under “ON” condition.

(2) Secondary interlock switch and interlock monitor switchWhen the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlockmonitor switch to bring it under “OFF” condition and presses the button of the secondary interlock switch to bring it under“ON” condition.

(3) Adjustment stepsa) Loosen the one mounting screw.b) Adjust interlock switch assembly position.c) Make sure that lock lever moves smoothly after adjustment is completed.d) Tighten completely one mounting screw.

ADJUSTMENT :Interlock monitor switch

When the door is closed, the interlock monitor switch should be opened before other switches are closed.When the door is opened, the interlock monitor switch should be closed after other switches are opened.

NOTE :Microwave emission test should be performed after adjusting interlock mechanism. If the microwave emission exceed 4mW/cm2, readjust interlock mechanism.

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8. TROUBLESHOOTING GUIDE

Following the procedure below to check if the oven is defective or not.

1) Check grounding before trouble checking.2) Be careful of the high voltage circuit.3) Discharge the high voltage capacitor.4) When checking the continuity of the switches, fuse or high voltage tranformer, disconnect one load wire from these

parts and check continuity with the AC plug removed. To do otherwise may result in a false reading or damage toyour meter.

(TROUBLE 1) Oven does not operate at all : any inputs can not be accepted.

NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.Check wire harness, wiring and connection of the terminals and power cord before check the parts listed below.

CONDITION CHECK

Check continuity ofinterlock monitor switch withdoor closed(COM↔NC)

Check continuity ofboth primary and secondaryinterlock switch with door closed

Malfunction ofInterlockmonitor switch

Malfunction ofinterlock switch

RESULT

Continuity

No continuity

CAUSE REMEDY

Replace

(COM↔NC)

Fuse blows.

Replace

Shorted contactsof primaryinterlock Switch

Continuity ReplaceCheck continuity ofprimary interlock switch contact withdoor partially open until interlockmonitor switch contact close( COM↔NC close )

Defective lowvoltagetransformer

Defective high voltagetransformer

0 Ω or infinite Replace

Replace

Check continuity ofprimary winding of low voltagetransformer

Disconnect high voltagefuse and operate the unit

NoContinuity

Continuity

Approx.530Ω

( normal )

Fuse againblows

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CONDITION CHECK

Check continuity ofmagnetron

Defectivemagnetron.

RESULT

Nocontinuity

CAUSE REMEDY

ReplaceOutlet haspropervoltage

fuse does notblow? Check continuity of noise filter

boardDefective line

filter boardNo

continuity Replace

Check continuity ofpower supply cord

Defective touchcontrol circuit

Replace

Open powersupply cord

Nocontinuity

Nocontinuity

Replace

NOTE : All these switches must be replaced at the same time, please refer to (7.Interlock mechanism and adjust) for adjustment instructions

(TROUBLE 2)Display shows all figures selected, but oven does not start cooking, even though desired program and timeare set and start button is tapped.

CONDITION CHECK

Check continuity ofprimary interlock switch

Malfunction ofprimary interlock

switch

RESULT

Nocontinuity

CAUSE REMEDY

Adjust orreplace

Turn tablemotor andoven lamp

donot turn on

Check D.C voltagebeing supplied toRELAY(RY6) coil

Fault contactsof RELAY

(RY6) or openrelay coil.

Replace

Check continuity of secondary interlockand D.O.M switch

Malfunction of secondary

Interlock and D.O.M switch

Nocontinuity

Adjust orreplace

Defective touchcontrol Circuit

0V

Approx.24V DC

Replace

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TROUBLE 3) No microwave oscillation even though fan motor rotates.

CONDITION CHECK RESULT

Check continuity ofhigh voltage capacitor terminals

with wires removed

Continuity

CAUSE

Defectivehigh voltagetransformer

Defectivehigh voltage

fuse

REMEDY

1

ReplaceNomicrowaveoscillation

Check continuity ofhigh voltage rectifier in forward

and backwarddirection with DC megger

Continuityin backwarddirection

Defective highvoltage rectifier

Replace

Connect megger leads tomagnetron terminal and

magnetron body

Continuity Defectivemagnetron

2

Check resistance of primaryand secondary coil of highvoltage transformer

Defective high voltagetransformer

Replace

Check continuity ofhigh voltage fuse

No microwave oscillation

Nocontinuity

Check continuity ofmagnetron heater with wiresremoved

No continuity Defectivemagnetron

Replace

Check continuity of filamentterminal of high voltagetransformer

No continuity Defective highvoltage

transformer

Replace

Check D.C voltagebeing supplied toRELAY (RY1) coil

0 V Defectivetouch control

circuit

Replace

Approx.24V DC

Faulty contacts ofRELAY

(RY1) or openrelay coil

Replace

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(TROUBLE 4) Grill heater (upper heater) is not heated; food will not become hot.

CONDITION CHECK


Malfunction ofprimary Interlock

switch

RESULT

Nocontinuity

CAUSE REMEDY

CAUSE REMEDY

Adjust orreplaceGrill heater is

not heated.

Check D.C voltagebeing supplied toRELAY (RY4) coil



Replace

Check continuity ofsecondary interlock switch

Malfunction ofsecondary

interlock switch

Nocontinuity

Adjust orreplace


0V

Approx.24V DC

Replace

Check continuity ofheater

Defective heaterNo

continuityReplace

(TROUBLE 5) 1) Convection heater is not heated; food will not become hot.2) Convection fan motor does no rotate.

CONDITION CHECK



switch

RESULT

Nocontinuity

Adjust orreplace

1)Convectionheater is not

heated.2)Convection

fan andmotor doesnot rotate.

Check D.C voltagebeing supplied to

RELAY (RY3, RY8) coil


(RY3,RY8) or open relay coil

Replace

Check continuity ofsecondary interlock

switch


interlock switch

Nocontinuity

Adjust orreplace


0V

Approx.24V DC

Replace

Check continuity of(heater or motor)

Defective motorNo

continuityReplace

23

(TROUBLE 6) Lower heater is not heated; food will not become hot.

CONDITION CHECK

Check continuity ofPrimary interlock switch


switch

RESULT

Nocontinuity

CAUSE REMEDY

Adjust orReplace

Lower heaterIs not heated

Check D.C voltageBeing supplied toRELAY (RY9) coil



Replace

Check continuity ofsecondary interlock

switch


interlock switch

Nocontinuity

Adjust orreplace

DefectiveTouch control

circuit

0V

Approx.24V DC

Replace

Check continuity ofheater

Defective heaterNo

continuityReplace

CONDITION CHECK

Check each button forcontinuity of the button

Malfunction oftouch control

circuit of controlbox sub-assembly

RESULT

Normal

CAUSE REMEDY

Replacecontrol box

sub-assembly

Display doesnot show

programmingat all, even ifkeyboard is

touched.

(TROUBLE 7) The following visual conditions inditions indicate a probable defective touch control Circuit or button P.C.B.assembly1. Incomplete segments.

1) segment missing2) partial segments missing3) digit flickering other than normal fluorescent slight flickering

2. A distinct change in the brightness of one or more numbers exists in thedisplay.

3. One or more digits in the display are not on when they should be.4. Display does not count down or up with time cooking or clock operation.5. Oven is programmable and cooks normally but no display shows.6. Display obviously jumps in time while counting down.7. Display counts down noticeably too fast while cooking.8. Display does not show the time of day when clear button is touched.9. Oven lamp and turn table motor do not stop although cooking is finished.

Check if the RELAY(RY6) contacts close and if they are close, replace touch control circuit.

24

CAUSE REMEDY

(TROUBLE 8) When “ERROR 2 ERROR 3” come on display.

CONDITION CHECK

Check continuity of thermistor(resistance of thermistor)

Replace

RESULT

0Ω or infinite Replace“ERROR 2 &ERROR 3”come ondisplay

Check continuity of heater(convection, upper, lower)


Replace

Approx200k~300kΩ

(roomtemperature)

Defectiveheater

Nocontinuty

continuity

Replace

25

9. MEASUREMENT AND TEST

9-1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT

Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of waterexposed to the microwave as directed below.

PROCEDURE

1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated atits maximum microwave power setting with a load of 1000 ± 5cc of potable water.

2. The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm andan outside diameter of approximately 190 mm.

3. The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature ofthe water is 10 ± 2°C (50 ± 3.6°F). If is measured immediately before the water is added to the vessel. Afteraddition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowestnormal position.

4. Microwave power is switched on.5. Heating time should be exactly A seconds.

(Refer to table as following)Heating time is measured while the microwavegenerator is operating at full power. The filament heat-up time for magnetron is not included.

6. The initial and final temperature of water is selected sothat the maximum difference between the ambient andfinal water temperature is 5K.

7. The microwave power output P in watts is calculatedfrom the following formula:

• ∆ T is difference between initial and ending temperature.• t is the heating time.The power measured should be B (Refer to 2. SPECIFICATIONS) W ± 10.0 %.

Heating time for power output:

CAUTION1. Water load should be measured exactly to 1 liters.2. Input power voltage should be exactly specified voltage (Refer to 2. SPECIFICATIONS).3. Ambient temperature should be 20 ± 2°C (68 ± 3.6°F)

P = 4187 X ∆ T/t

70

600

64

650

60

700

56

750

52

800

49

850

47

900

44

950

42

1000

40

1050

38

1100

A (second)

B (W)

26

9-2. MICROWAVE RADIATION TEST

PROCEDURE

1. Prepare Microwave Energy Survey Meter, 600cc glass beaker,and glass thermometer 100°C (212°F).

2. Pour 275cc ± 15cc of tap water initially at 20 ± 5°C (68 ± 9°F) inthe 600 cc glass beaker with an inside diameter of approx. 95mm(3.5 in.).

3. Place it at the center of the tray and set it in a cavity.

4. Close the door and operate the oven.

5. Measure the leakage by using Microwave Energy Survey Meterwith dual ranges, set to 2450MHz.

1) Measured radiation leakage must not exceed the valueprescribed below. Leakage for a fully assembled oven withdoor normally closed must be less than 4mW/Cm2.

2) When measuring the leakage, always use the 5 cm (2 in.)space cone with probe. Hold the probe perpendicular to thecabinet and door. Place the space cone of the probe on thedoor, cabinet, door seem, door viewing screen, the exhaust air vents and the suction air vents.

3) Measuring should be in a counter-clockwise direction at a rate of 1 in./sec. If the leakage of the cabinet doorseem is unknown, move the probe more slowly.

4) When measuring near a corner of the door, keep the probe perpendicular to the areas making sure the probeend at the base of the cone does not get closer than 2 in. from any metal. If it does not, erroneous reading mayresult.

WARNING1. Make sure to check the microwave leakage before and after repair of adjustment.2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy.3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known.4. Care should be taken not to place the eyes in direct line with the source of microwave energy.5. Slowly approach the unit under test until the radiometer reads an appreciable microwave leakage from the

unit under the test.

27

9-3. COMPONENT TEST PROCEDURE

• High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle.• It is neither necessary nor advisable to attempt measurement of the high voltage.• Before touching any oven components or wiring, always unplug the oven from its power source and discharge the

capacitor.

1. High voltage transformer

1) Remove connections from the transformer terminals and check continuity.2) Normal readings should be as follows :

Secondary winding ... Approx. 100 Ω±10%Filament winding ... Approx. 0.1 ΩPrimary winding ... Approx. 1.4 Ω

2. High voltage capacitor

1) Check continuity of capacitor with meter on the highest OHM scale.2) A normal capacitor will show continuity for a short time, and then indicate 10MW once the capacitor charged.3) A shorted capacitor will show continuous continuity.4) An open capacitor will show constant 10MΩ.5) Resistance between each terminal and chassis should be infinite.

3. High voltage diode

1) Isolate the diode from the circuit by disconnecting the leads.2) With the ohmmeter set on the highest resistance scale measure the resistance across the diode terminals.

Reverse the meter leads and again observe the resistance reading. Meter with 500V dc or higher voltagebatteries should be used to check the front-back resistance of the diode, otherwise an infinite resistance may beread in both directions. A normal diode's resistance will be infinite in one direction and several hundred kΩ in theother direction.

4. Magnetron

For complete magnetron diagnosis, refer to "Measurement of the Microwave Output Power." Continuity checks canonly indicate and open filament or a shorted magnetron. To diagnose for an open filament or a shorted magnetron,1) Isolate magnetron from the circuit by disconnecting the leads.2) A continuity check across magnetron filament terminals should indicate 0.1 Ω or less.3) A continuity check between each filament terminal and magnetron case should read open.

5. Fuse

If the fuse in the primary and monitor switch circuit is blown when the door is opened, check the primary andmonitor switch before replacing the blown fuse. In case the fuse is blown by an improper switch operation, replacethe defective switch and fuse at the same time. Replace just the fuse if the switches operate normally.

28

9-4. COMPONENT ACTION

COOKING MODE

M/W

GRILL-1

GRILL-2

COMBI-1

MANUAL COMBI-2

MODE COMBI-3

COMBI-4

COMBI-5

CONVECTION40

CONVECTION100~250

FRESH PIZZA

ONE FROZEN PIZZA

TOUCH FRESH GRATIN

(CRUSTY/ FROZEN GRATIN

CAKE) CAKE

BREAD

ROAST BEEF

ROAST CHICKEN

AUTO ROAST PORK

COOK BAKED FISH

MODE BAKED POTATO

ROAST POTATO

FRESH VEGETABLES

FROZEN VEGETABLES

CASSEROLE

MAGNE-TRON

UPPERELEMENT

LOWERELEMENT

REARELEMENT

CONVEC-TION FAN

29

10. WIRING DIAGRAM

30

11. EXPLODED VIEW AND PARTS LIST

TOTAL ASSEMBLY* From A00 to G00 and P00, refer to 6. Disassembly and assembly.

31

NO PARTS CODE PARTS NAME DESCRIPTION Q'TY REMARKA00 3511724960 DOOR AS KOC-154K8S 1B00 PKCPSWF220 CONTROL-PANEL AS KOC-154K8S 1C00 3512804140 HEATER *B AS KOC-154K8S 1D00 3512804030 HEATER *T AS KOC-154K8S 1E00 3512803900 HEATER *U AS KOC-1B0K0S 1F00 3511408520 COVER *B AS KOC-154K8S 1G00 3512525310 GUIDE AIR AS KOC-154K8S 1P00 3512513400 GUIDE WIND AS KOC-971C0S 1H01 3516117710 CAVITY AS KOC-154K8S 1H02 3512523600 GUIDE AIR OUTLET SBHG T0.5 1H03 3513304000 INSULATOR HEATER *T SECC TO.5 1H04 7121400611 SCREW TAPPING T2S PAN 4X6 1H05 3518904400 THERMOSTAT OFF:120 ON:60 VN 1H06 3510808620 CABINET AS KOC-154K8S 1H07 7112401011 SCREW TAPPING T1 TRS 4X10 4H08 7112401012 SCREW TAPPING T1 TRS 4X10 BK 1H09 35113A5QJ5 CORD POWER AS 3X1.5 80X80 120-RTML 1.4M 1H10 7S432X4081 SPECIAL SCREW TT3 TRS 4X8 SE MFZN 2H11 7122401211 SCREW TAPPING T2S TRS 4X12 1H12 7121300811 SCREW TAPPING T2S PAN 3X8 1H13 3518903400 THERMOSTAT OFF:150 ON:60 V 1H14 3518003700 MAGNETRON 2M218JFL 6CF 1H15 3516004000 SPECIAL SCREW T2 BOLT FLANGE 5X12 1H16 3518605001 NOISE-FILTER DWLF-M05 1H17 7S432X4081 SPECIAL SCREW TT3 TRS 4X8 SE MFZN 1H18 3513003200 HOLDER HV CAPACITOR SECC T0.6 1H19 3518302301 CAPACITOR HV 2100VAC 1.10UF #187 80MM 1H20 3518400400 DIODE HV HVR-1X-3AB 12KV #187 1H21 3518701400 FUSE HV 5KV 0.7A 1H22 3518119110 TRANS HV RIS5DA 1H23 7147401011 SCREW TAPPING T2 FLANGE 4X10 4H24 3510317300 BASE SBHG -1 TO.8 1H25 3512101400 FOOT DASF-310 4H26 7272400811 SPECIAL SCREW TT3 TRS 4X8 MFZN 1H27 7112401011 SCREW TAPPING T1 TRS 4X10 6H28 3515202800 STOPPER HINGE *U AS KOR-121M0A 1H29 3513702100 LEVER SW MICRO POM,KOG-846T0S 1H30 4415A17352 SW MICRO VP-533A-OF SPNO #187 1H31 4415A66600 SW MICRO VP-532A-OF SPNC #187 1H32 4415A17352 SW MICRO VP-533A-OF SPNO #187 1H33 3513700800 LEVER LOCK POM 1H34 3513820000 LOCK PP 1H35 4415A66910 SW MICRO VP-531A-OF 1H36 3512718440 HARNESS MAIN KOC-154K8S 1H37 7122401211 SCREW TAPPING T2S TRS 4X12 1H38 7122401211 SCREW TAPPING T2S TRS 4X12 1H39 3966031110 MOTOR SYNCRO 220/240V 50/60 SM16 1H40 7121400611 SCREW TAPPING T2S PAN 4X6 1H41 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 2H42 3511408300 COVER WAVE GUIDE MICA T0.35 1H43 3517402500 COUPLER PTFE 1H44 3512521000 GUIDE ROLLER AS KOC-1B0K0S 1H45 3517207600 TRAY DIA:340 1300G 1H46 3517211100 TRAY METAL AS KOC-1B0K0S 1H47 3517207330 TRAY RACK AS KOC-154K8S 50MM 1H48 3517207320 TRAY RACK AS KOC-154K8S 160MM 1H49 3511411500 COVER LAMP PE 1

32

12. PRINTED CIRCUIT BOARD

CIRCUIT CHECK PROCEDURE

1. Low voltage transformer check

The low voltage transformer is located on the P.C.B.Measuring condition: Input voltage: 220~240V / Frequency: 50Hz

2. Voltage Check

- Key check point

- Check method

NOTE1. Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source

voltage.2. The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

NOTE: Each measure point must be measured with GND points.

Terminal

6-7

8-9

9-10

Voltage(load)

AC 17.0 V

AC 1.3 V

AC 1.3 V

Voltage(no load)

AC 19.9 V

AC 1.6 V

AC 1.6 V

NO CHECK POINT REMARK

1 IC1 PIN 63, 64 5VDC±5%

2 IC1 PIN 38

3 IC1 PIN 33 OR 34

T : 20 ms(50Hz)

5V

0VT

T : 250 ns(4MHz)

5V

0VT

NO MEASURE POINT WAVE FORM REMEDY REMARK

1 A DC 5V±5% Replace ZD2, EC1 NO LOAD

2 B DC 24V±20% Replace D23-26, EC4 NO LOAD

3

33

3. Case of no microwave oscillation1) When touching M/W button, oven lamp turns on and Fan motor and turntable rotate, and cook indicator in

display comes on.*Cause: RELAY 1 does not operate.

- Check method

2) When touching M/W button, oven lamp does not turn on and turntable motor does not rotate but cook indicatorin display comes on.*Cause: RELAY 6 does not operate.

- Check method

3) When touching M/W button, oven lamp turns on and fan motor does not rotate but cook indicator in displaycomes on.*Cause: RELAY 7 does not operate.

- Check method

STATE

RELAY 1 ON

RELAY 1 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

D14

Q6

STATE

RELAY 6 ON

RELAY 6 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

D16

RY6Q10

40

STATE

RELAY 7 ON

RELAY 7 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

D17

RY7 Q11

43

34

4. Case of no heating of upper grillWhen touching GRILL1 & COMBI button, oven lamp turns on and Fan motor and turntable motor rotate and cookindicator in the display comes on.*Cause: RELAY 4 does not operate.

5. Case of no heating of lower grillWhen touching GRILL2 & COMBI button, oven lamp turns on and Fan motor and turntable motor rotate and cookindicator in display comes on.*Cause: RELAY 9 does not operate.

6. Case of no heating of convection grillWhen touching CONVECTION button, oven lamp turns on and Fan motor and turntable motor rotate and cookindicator in the display comes on.*Cause: RELAY 3 does not operate.

STATE

RELAY 4 ON

RELAY 4 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

RY4Q5

D1148

STATE

RELAY 9 ON

RELAY 9 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

RY9

D19

Q13

45

STATE

RELAY 3 ON

RELAY 3 OFF

POINT A

+5V DC

GND

POINT B

GND

+24V DC

D12 47

35

7. Case of no stopping of the count down timerWhen the door is opened during operation, the count down timer does not stop.

- Check method

POINT

STATE

DOOR OPEN

DOOR CLOSED

A

OPEN

CLOSE

B

+5V DC

GND

CHECK NO METHOD REMEDY

1 Check the stage(ON,OFF) of the door open Replace door open monitor swith.

monitor switch by resistance measurement.

36

13. P.C.B. CIRCUIT DIAGRAM

37

NO NAME LOCATION PART CODE SPECIFICATION Q'TY REMARK

1 BUZZER BZ1 3515600100 BM-20K 1

2 C CERA C1~4,7~13 CCZF1H104Z 50V HIKF 0.1uF Z 11

3 C CERA C5,6 CCZB1H102K 50V B 1000pF K 2

4 C ELECTRO EC1 CEXE1H100A 50V RS 10uF (5X11) TP 1

5 C ELECTRO EC2,EC3 CEXF1V221V 35V RSS 220uF (10X12.5) TP 2

6 C ELECTRO EC4 CEXF1V102V 35V RSS 1000uF (13X25) TP 1

7 C ELECTRO EC5 CEXF1H101V 50V RSS 100uF (8X11.5) TP 1

8 C ELECTRO EC6 CEXF1H221V 50V RSS 220uF (10X16) TP 1

9 CONN WAFER CN2 3519150530 YW396-03V 1

10 CONN WAFER CN1 30166M5030 35312-0310 1

11 CONN FILM CN3 4CW215SBD0 HLEM15S-1 1

12 CONN WAFER CN4 3519150700 YW396-11AV 1

13 DIODE SWITCHING D1~20 DZN4148--- 1N4148 AUTO 52mm 20

14 DIODE RECTIFIER D21~D26 DZN4004A-- 1N4004A AUTO 52mm 6

15 DIODE ZENER ZD1 DZUZ3R3BSB UZ-3.3BSB 1

16 DIODE ZENER ZD3 DZUZ24BSB- UZ-24BSB 1


18 DIODE ZENER ZD4 DZUZ13BSA- UZ-13BSA 1


20 DIGITRON DP1 DHNM07MS12 HNM-07MS12 1

21 FOAM SPONGE 3517305500 40X15X5 1

22 IC MICOM IC1 13GL87P14N TMP87PM14N(OTP) 1

23 PCB MAIN M279 3514330330 BOARD(97x257) 1

24 PTC PTC1 DP1390MK10 390M (39 OHM, 120°C) 1

25 R CARBON FILM R3 RD-AZ201J- 1/6 200 OHM 5% 1

26 R CARBON FILM R4~6,16,18~21,26,30 RD-AZ102J- 1/6 1K OHM 5% 10

27 R CARBON FILM R27 RD-AZ472J- 1/6 4.7K OHM 5% 1

28 R CARBON FILM R2,7~11,22~24 RD-AZ103J- 1/6 10K OHM 5% 9

29 R CARBON FILM R34 RD-AZ473J- 1/6 47K OHM 5% 1

30 R CARBON FILM R15,17,25 RD-AZ104J- 1/6 100K OHM 5% 3

31 R CARBON FILM R1 RD-AZ105J- 1/6 1M OHM 5% 1

32 R CARBON FILM R28 RD-4Z102J- 1/4 1K OHM 5% 1

33 R CARBON FILM R33 RD-2Z270JS 1/2 27 OHM 5% SMALL 1

34 R CARBON FILM R31,32 RD-2Z201JS 1/2 200 OHM 5% SMALL 2

35 R CARBON FILM R29 RD-2Z271JS 1/2 270 OHM 5% SMALL 1

36 R METAL FILM R13 RN-AZ1301F 1/6 1.3K OHM 1% 1

37 R METAL FILM R14 RN-AZ1692F 1/6 16.9K OHM 1% 1

38 R METAL FILM R12 RN-AZ1503F 1/6 150K OHM 1% 1

39 R ARRAY RA1 RA-85X104J 5P(4) 1/8 100K OHM 5% 1

40 R ARRAY RA2 RA-86X104J 6P(5) 1/8 100K OHM 5% 1

41 RESONATOR CERA CR1 5P4R00MTS- CRT4.00MS 1

38

NO NAME LOCATION PART CODE SPECIFICATION Q'TY REMARK

42 SW RELAY RY1,2 5SC0101122 G5G-1A 1C 1P DC24V 2

43 SW RELAY RY3~5 5SC0101124 G5G-1A-DT 1C 1P DC24V 3

44 SW RELAY RY6~9 5SC0101129 CS11-24SH 1C 1P 4

45 TR Q5~8,10~14,17 TZRC106M-- KRC-106M (AUTO) 10

46 TR Q1,4 TZTA1266Y- KTA-1266Y (AUTO) (1015Y) 2

47 TR Q2,3,9,16 TZTC3198GR KTC-3198GR (AUTO) (1815GR) 4

48 TR Q15 TZTC1027Y- KTC-1027Y 1

49 TRANS POWER LVT 5EPV041410 DMR-210FS 1

50 WIRE COPPER J10,11,13,15,16,18,20~22 85801052GY 1/0.52 TIN COATING 7.5mm 9

51 WIRE COPPER J3,9 85801052GY 1/0.52 TIN COATING 15mm 2

52 WIRE COPPER J2,8,14 85801052GY 1/0.52 TIN COATING 12.5mm 3

53 WIRE COPPER J1,4~7,12,17,19 85801052GY 1/0.52 TIN COATING 10mm 8

54 CONN WAFER CN101 4CW215RBD0 HLEM15R-1 1

55 PCB SUB M280 3514322760 BOARD(81x231) 1

56 SW ROTARY EN101 5S10109002 SDB161PVB17F123636(P=5MM) 1

57 VR ROTARY VR101 5V1104103B V012LPV20F 100K 1

58 SW TACT SW101~SW111 5S50101Z93 KPT-1115AM 11

59 WIRE COPPER J102 85801052GY 1/0.52 TIN COATING 10mm 1

60 WIRE COPPER J101 85801052GY 1/0.52 TIN COATING 7.5mm 1

61 WIRE FLAT WF1 WSJ-159007 1.25X15X90XC 1

S/M NO. :

DAEWOO ELECTRONICS CORP.686, AHYEON-DONG MAPO-GU SEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAEWOOELEC”

PRINTED DATE: Oct. 2006

service manual magnetron will immediately stop operating. 2. door viewing screen allows viewing of...

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